Lister furrow dammer



Oct. 8, 1940. RA POOR 2,217,381

LISTER FURROW DAHMER Filed June 5, 1940 a Sheet -Sheet 1,

INVENTOR.

A TTORNEYS.

Oct. 8, 1940. R. H. POOR 2,217,381

LISTER FURROW DAIIMER Filed June 5, 1940 3 Sheets-Sheet 3 Poor , IN V EN TOR.

A TTORNEYS.

Patented Oct. 8, 1940 UNITED STATES,

PATENT OFFICE.

3 Claims.

This invention has reference to agricultural machines, and aims to provide an attachment for use in connection with listers, the primary object of the invention being to provide means for forming dams in the furrows formed by the lister, for

irrigating purposes.

An important object of the invention is to provide a device of this character including pivoted dam-forming members adapted to be intermittently moved into and out of the furrows over which the machine is moving, forming dams throughout the length of the furrows, the dams being predetermined distances apart.

A still further object of the invention is to provide an attachment of this character which may be readily and easily mounted on the usual lister, without the necessity of making extensive alterations in the usual lister construction to mount the device. 20 With the foregoing and other objects in View, which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein described, may be made within the scope of what is claimed, without departing from the spirit of the invention.

Referring to the drawings:

Figure l is a side elevational view of a lister equipped with a dam-forming attachment constructed in accordance with the invention.

Figure 2 is a rear elevational View thereof.

Figure 3 is a plan view of the attachment.

Figure 4 is a sectional View taken on line 4-4 of Figure 3.

Referring to the drawings in detail, the reference character 5 designates the usual side rails of a lister, to which the attachment is connected.

The rear end of the lister frame is supported by means of the wheel 6, While the forward end of the frame is supported by means of the substantially large Wheels l, the wheels 'I'being supported on the substantially U-shaped swinging shaft 8, by means of which the frame of the lister may be elevated or lowered, to adjust the depth of operation of the lister 9, in the usual and well known manner.

Disks ID are supported at the rear of the listers 9, and act to spread the soil over seed in the furrows formed by the listers.

The attachment comprises a shaft ll mounted in bearings l2 that are secured to the frame of the lister, the shaft H providing a support for the arms i2, which have their forward ends secured to the shaft l l, to rotate therewith. These arms l2 are secured to the shaft Ii, near the ends thereof, and connect with the downwardly extended arms 13 which have connection with the inverted U-shapcd members M that carry the dam-forming disks l 5, at their ends.

As clearly shown by the drawings, these disks H: are arranged in pairs, and are disposed at oblique angles with respect to each other, so that they will move into a furrow to extend across the entire width of the furrow.

Secured to the shaft l I, and disposed at a point intermediate its ends, are upwardly extended arms It, the arms being secured to the shaft II, to move therewith. Bearing openings are formed in the arms it to receive the shaft ll to which the rod 18 is connected, the rod I8 having a reduced portion it that operates through the bearing 20 formed on the bar 2i, forming a part of the lister frame. A roller indicated by the reference character 22 is mounted at the forward end of the rod 18 and is adapted to engage the edge of the cam 23 that is secured to the shaft 24 which in turn is mounted in bearings 25 carried by the lister frame.

A sprocket indicated by the reference character 26 is secured to the hub of one of the wheels '5, and transmits movement to the shaft 21, through the medium of the chain 28 that moves over the sprocket 29, secured to said shaft 27. A sprocket 38 also secured to the shaft 21, transmits movement to the sprocket 3|, through the chain 32. Thus it will be seen that due to the construction shown and described, with each complete rotation of the cam 23, the rod I8 is moved rearwardly with the result that the dam-forming disks are moved downwardly scraping the walls of the furrow causing dirt to pile in the formation of a dam within the furrow. As the low side of the cam moves into engagement With the roller 22, it is obvious that the rod i8 will be moved in the reverse direction, elevating the dam-forming disks Hi. This reverse movement of the rod I8 is caused by the action of the coiled spring 28 which has one end thereof connected with the rod 29 that has pivotal connection with the upper ends of the arms [6, at 30. The forward end of the spring 28 is hooked into the bracket 3| that is secured to the bearing 20.

What is claimed is:

1. A machine for forming dams comprising a wheel-supported frame, a pivoted shaft on the frame, arms secured to the shaft, a sliding rod connected with one of said arms, a roller mounted at the forward end of the rod, a cam engaging the roller and adapted to move the rod and arms in one direction, dam-forming disks, means for connecting the dam-forming disks to one of said arms, and means for moving the arms and rod in the opposite direction elevating the dam-forming disks.

2. A machine for forming dams, comprising a wheel-supported frame, a shaft mounted on the frame, an upwardly extended arm on the shaft, a. rearwardly extended arm on the shaft, an arm connected with the rearwardly extended arm, damming disks connected with the latterarm, a rod having pivotal connection with the arm ex- 15 tending upwardly from the shaft, and extending swing the pivoted arm Vertically, and a cam on a the frame and engaging the slidable arm, at predetermined intervals, raising and lowering the dam-forming disks, forming dams.

RALPH H. POOR. 

